"This Erasable Shower Note Tablet comes with waterproof crayons with which to jot down all the ideas that occur during your showers. I often have great ideas in the shower -- the problem would be getting these things from the shower tablet into my organizer. . ."
I am not too keen on his additional idea of a webcam in the shower. He just mentions it and then rejects it, but it is an amusing thought. Go take a look.